Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Terminals Of Ecu
TERMINALS OF ECU
DCM (TELEMATICS TRANSCEIVER)
| *a | to Telephone Antenna (Sub) | *b | to GPS Antenna |
| *c | to Telephone Antenna (Main) | - | - |
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J168-1 (USB-) | - | USB communication line | - | - |
| J168-2 (USB+) | - | USB communication line | - | - |
| J168-3 (USBS) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 V |
| J157-31 (USBG) - Body ground | G - Body ground | DCM (Telematics Transceiver) power supply ground signal | Always | Below 1 V |
| J157-17 (VOT+) - J157-20 (E) | P - W-B | Sent voice signal | Vehicle occupant speaking to operator | A waveform synchronized with the voice signals received voice is output |
| J157-15 (USBV) - J157-20 (E) | L - W-B | DCM (Telematics Transceiver) power supply signal | Engine switch off | Below 1 V |
| Engine switch on (IG) | 4.5 to 5.25 V | |||
| J157-33 (VOT-) - J157-20 (E) | SB - W-B | Sent voice signal | Vehicle occupant speaking to operator | A waveform synchronized with the received voice is output |
| J157-34 (VOR-) - J157-20 (E) | LG - W-B | Receive voice signal | Operator speaking to vehicle occupant | A waveform synchronized with the sent voice is output |
| J157-18 (VOR+) - J157-20 (E) | BR - W-B | Receive voice signal | Operator speaking to vehicle occupant | A waveform synchronized with the sent voice is output |
RADIO RECEIVER ASSEMBLY
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J149-15 (VOT+) - J148-1 (GND1) | BR - W-B | Sent voice signal | Destination assist service in use and vehicle occupant speaking to operator | A waveform synchronized with the sent voice is output |
| J149-10 (USBV) - J148-1 (GND1) | L - W-B | DCM (Telematics transceiver) power supply | Engine switch on (ACC) | 4.75 to 5.25 V |
| Engine switch off | A waveform synchronized with sound is output | |||
| J149-11 (USBG) - J148-1 (GND1) | G - W-B | DCM (Telematics Transceiver) power supply ground signal | Always | Below 1 V |
| J149-12 (SGND) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 V |
| J149-13 (VOR+) - J148-1 (GND1) | P - W-B | Receive voice signal | Destination assist service in use and operator speaking to vehicle occupant | A waveform synchronized with the received voice is output |
| J149-14 (VOR-) - J148-1 (GND1) | SB - W-B | Receive voice signal | Destination assist service in use and operator speaking to vehicle occupant | A waveform synchronized with the received voice is output |
| J149-16 (VOT-) - J148-1 (GND1) | LG - W-B | Sent voice signal | Destination assist service in use and vehicle occupant speaking to operator | A waveform synchronized with the sent voice is output |
NAVIGATION ECU (w/ Navigation System)
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J164-2 (USB-) | - | USB communication line | - | - |
| J164-1 (USB+) | - | USB communication line | - | - |
| J164-3 (USBS) - Body ground | Shielded - Body ground | Shield ground | Always | Below 1 V |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
After replacing the radio receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary (w/ SXM Functi ...
Confirm Cellular Phone Functionality
PROCEDURE 1. CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY (a) Check if the cellular phone is compatible (Refer to http://www.lexus.com/MobileLink/). Result Proceed to Cellular phone ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System (w/ Automatic Headlight Beam Level Control System): Operation Check
OPERATION CHECK AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK NOTICE: Make sure that the customize settings are set to default when performing the automatic light control system operation check. Click here (a) Turn the engine switch on (IG). (b) Turn the light control switch to the AUTO position. ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Smart Access System With Push-button Start (for Entry Function): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use these procedures to troubleshoot the smart access system with push-button start (for Entry Function).
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshoo ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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